Fix a few narrowing conversions (#761)

* Fix narrowing conversion in album cover loader

* Fix narrowing conversions in discogs cover provider

* Fix narrowing conversions in spotify cover provider

* Add explicit conversion in moodbarbuilder

* Fix narrowing conversions in osd dbus

* Make WordyTimeNanosec use unsigned quint64

* Fix narrowing conversions in song

* Fix narrowing conversions in qobuz stream url request

* Make ConnectionInfo.msgLen use unsigned quint64

* Make AnalizerBase.timeout to signed int

* Fix narrowing conversions in album cover fetcher

* Make fht type be unsigned int

* Correct for type in blockanalizer and use std::fill where possible

* Revert "Fix narrowing conversions in song"

This reverts commit 3de291394d.

src/osd/osddbus.cpp

@@ -164,7 +164,7 @@ void OSDDBus::ShowMessageNative(const QString &summary, const QString &message,
 
   hints["transient"] = QVariant(true);
 
-  int id = 0;
+  quint64 id = 0;
   if (last_notification_time_.secsTo(QDateTime::currentDateTime()) * 1000 < timeout_msec()) {
     // Reuse the existing popup if it's still open.  The reason we don't always
     // reuse the popup is because the notification daemon on KDE4 won't re-show the bubble if it's already gone to the tray.  See issue #118

src/osd/osdpretty.h

@@ -145,7 +145,7 @@ class OSDPretty : public QWidget {
   // Settings loaded from QSettings
   QColor foreground_color_;
   QColor background_color_;
-  float background_opacity_;
+  qreal background_opacity_;
   QString popup_screen_name_;
   QPoint popup_pos_;
   QScreen *popup_screen_;